Arc-welding composition



To it may concern:

Fetented Sept. Ill, 1923..

"antitanmass i meant Parana corn ce.

tannins c. on, or when VIEW nononen, rnrmsrnvanra.

-WELDING COMPOSITIQN.

it'ohrawing.

I James C. Aimuon a 1 Bei own that tates, and reslding in citizen of the United the borough of West View, in the county of invented or discovered the new, useful, and

Allegheny and State of Pennsylvania, have Imved" Arc-Welding Composition, of

, either-entirely or in part'by lithium, p0tas wh ch the following is a specification.

My invention consists of a new and improved compound for use in connection with electric-arc welding, for the pur'poses,'inter alia, of using a lower impressed voltage than is now possible with the compounds nbw in neral use, and of obtaining a dense, uniorm weld of great strength, and free from and other impurities.

1 nerall speaking, my improved compoundis c aracterized by zirconia. Thus I may use a zirconate of an alkali, such as 7 sodium Zirconate. Or, I may use zircon or any other natural 'form of zirconium, to-- gether with an alkali or alkali earth.

Where zirconia in a neutral or acid form; is used, itmust be combined with an alkaline substance, as by precipitation or fusion.

Thus may fuse pure zirconia (Z10 with an equal weight of soda ash. If zircon is to be used, I fuse ten parts of zircon with twelve parts ofsoda as Theperce'nta of sodium may be varied through wide limits, or itmay be replaced,

sium, calcium, strontlum or barmm. Thus, instead of soda ash, I may u potassium carbonate, obtaining potassium zirconate; or I may use lithium carbonate,

obtaining lithium zirconate.

This product may be used ing compound, but I prefer. to dilute or combine the same with asuitable flux having a melti I point near, preferably lower than, the me ting point of the metal to be welded.

Thus, where mild steel is to be. welded, .I-

use a flux composedof silicates-of iron, aluminum and ma anese,-toge ther with, preferably, an alkaline substance or substan. i

I What I desire to claim is alone as a weld-' August, 1921.

Application filed August 9, 1921. Serial iil'o. 490,919.

use the following formula for Thus I may the purpose:

' Weight. Sodium zirconate 6% Clay 38% Ferric oxide 10% Manganese dioxide 8% Soda ash 38% These elements are preferably fused together and then pulverized; or they may be merely pulverized and thoroughly mixed. I

The percentage of clay may vary or it may be replaced to a greater or less extent by silica or alumina.

The'metallic oxides may vary through wide limits or be entirely absent.

For special purposes, I may add other substances, such, for instance, as powdered aluminum, to purify the metal, or nickel toform nickel steel.

' In'use, the composition is applied to the wire or rod which forms the electrode, and

as the wire-or rod is melted to-form the the formation of a dense, uniformand very strong weld.

The flux isfused and rises to float on the surface of the metal. forming the'weld, dissolving out the impurities in the metal,- and, by the; formation'of 'aprotective coating,

- preventing the oxidation and the absorption terms 0. dance.

weld, the zirconia enters the weld and causes 

